Multiply protonated betaine clusters are stable in the gas phase.
Multiply protonated clusters of betaine are formed via electrospray ionisation and fragment via competitive betaine neutral loss and charge separation; theoretical calculations suggest the [M(n)+2H](2+) ions consist of a [M(2)+2H](2+) core based on the hydrogen bonded carboxylic acid dimer.
Feketeová
Linda
L
School of Chemistry, University of Melbourne, Victoria 3010, Australia.
O'Hair
Richard A J
RA
D001622:Betaine / Q000737:chemistry*; D005740:Gases / Q000737:chemistry*; D007536:Isomerism; D011522:Protons; D011789:Quantum Theory; D021241:Spectrometry, Mass, Electrospray Ionization; D053719:Tandem Mass Spectrometry
D005740:Gases; D011522:Protons; D001622:Betaine